John r



(No Model.)

J. R. RANKIN.

PRINTING MAGHINE.

No. ,407,034. Patented July 16, 1889 l 7/ 77 Q J J 7 1 13.3 7 i i HE 5 I6 1' 8 s 70 u M i: B 0

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N. PETERS. Plmlo-Lnhographm. Washington. a a

UNITED STATES PATENT ()EEICE.

JOHN R. RANKIN, OF INDIANAPOLIS, INDIANA.

PRINTING- MACHINE.

SPECIFICATION forming part of Letters Patent N0. 407,034, dated July 16,1889.

Application filed May 5, 1888. Serial No. 272,879. (No model.)

To all whom it may concern.-

Be it known that I, JOHN R. RANKIN, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented a new and useful Improvement in Printing-Nachines, ofwhich the following is a specification.

My invention relates to an in'iprovementin that class ofprinting-presses in which the types are set in flat forms in aplane-surfaced substantially rectangular type-carrier, which is arrangedto be revolved in contact with a convex platen, and in which impressionsare made upon a continuous web of paper.

The object of my improvement is to provide a press of this class whichwillbe simple in construction, may be operated by hand more rapidly thanthe ordinary platen-press, and which will cost less than the ordinaryrotary press, all as hereinafter fully described.

The accompanying drawings illustrate my invention.

Figure 1 is a side elevation. Fig. 2 is a plan. Fig. 3 is a transversevertical section at line a, Fig. 1.

A is a suitable bedframe, having about midway of its length a raisedconvex platen B, which extends transversely across the bedframe.

0 is a roller mounted in open bearings on one end of the bed-frame andcarrying a continuous web of paper D, which passes under suitableguide-rollers c, f, and g to a roller (I, mounted on the opposite end ofthe bedframe, the arrangement being such that the web of paper is drawnsmoothly over the convex surface of the platen.

II is the type-carrier,havingplanc surfaces 3, 3, and i. Surface 1 ofthe type-carrier is of the same width as the convex surface of theplaten, and is recessed to receive the t-ppes '1', leaving, however,blank surfaces j j at each end of the carrier, which blank surfaces restupon corresponding slightly-raised bearing-surfaces 7.; 7. at each endof the platen when the type-carrier is revolved, thus preventing thecrushing of the types. The surfaces 2, 3, and at of the type-carrier aresimply flat surfaces, which serve as ink-carriers, the ink beingdistributed on the surfaces by the ink-roll Z, and from thence to thetypes by means of the ink-rolls m and n, as hereinafter explained. Forthe purpose of controlling the rolling movement of the type-carrier, sothat the type-surface 1 shall always register properly with the platen,I secure to the bed-frame at each end of the platen curved rack-bars oo, and to the bed-frame on each side of the platen at each end,in linewith the bearing-surfaces 707. I secure the curved rack-bars p p and rr. The rack-barso 0 intermesh with straight rack-bars s s, secured tothe type-carrier at each end of and parallel to surface 1, and therack-bars p and r intermesh, respectively, with corresponding straightrack-bars t and u a, secured, respectively, to the surfaces 2 and 1 ofthe type-carrier. The arrangement is such that the type-carrier, when inthe position shown in Fig. 1, rests 011 the rack-bars r r, surfaceetbeing downward and the type-surface 1 being toward the left. As thetype-carrier is rotated toward the left by means of the crank E, whichis secured to the shaftF, which passes lengthwise through the carrier,the angles a, formed by surfaces 1 and 4, enter and rest in the anglesn, formed by the bearing-surfaces 7tand the ends of rack-bars 0*, thusholding the type-carrier exactly in register with the platen whilerack-bars a are passing out of engagement with rack-bars r and rack-barss are passing into engagement with rack-bars 0. As the type-carrier isfurther rotated, surface 1, carrying the types, is brought into contactwith the paper, which rests on the platen, the impression is made, andthe type-carrier is turned until it rests on rack-bars p, with surface 2downward and surface 1 toward the right. The web of paper is now rolledon roller cl until the impression formed registers with a pointer 20,secured to the bed-frame, as shown in Fig. 2. The type-carrier is thenturned toward the right to its former position, thus making a secondimpression. In turning toward the right the angle formed by surfaces 1and 2 enters the angle 13 and insures the proper registration of thetype-surfaces of the carrier with the platen.

The inking of the type may be accomplished by hand ink-rollers; but forthe purpose of automatically inking them I mount on opposite ends of theshaft F a pair of frames, each consisting of a horizontal bar 5 andthree vertical standards 7, 8, and 9, the shaft passing through thehorizontal bars. Said frames are arranged to rest upon and to slidealong a pair of guidebars 10 10, which are secured to standardsprojecting from the bed-frame. The ink-rolls m and n are mounted at eachend in the lower ends of bars 11 and 12,which are pivoted at their upperends to the upper ends of the standards 7 and 8, so that said ink-rollsm and n rest against the sides of the typecarrier as it revolves.

The ink-rolll is mounted in slotted hearings in the standards 0 andrests on the top of the typecarrier. Ink being spread on one of the fiatsurfaces of the type-carrier is taken up by the rolls, and as thecarrier revolves and-moves forward and back the frames which support theink-rolls slide along the guide-bars, and the ink is distributed in anobvious manner.

I claim as my invention- 1. In a printing-press, the combination of thefollowing elements, namely: a bed-frame, a convex platen secured to saidbed-frame, and a type-carrier having a recessed plane surface in whichtypes are set, all arranged to co-operate substantially asspecified,whereby an impression from the types is obtained by rollingthe type-carrier over the platen and along the bed-frame, as set forth.

2. In a printing-press, the bed-frame, the convex platen secured to saidbed-frame, the type-carrier having a recessed plane surface in whichtypes are set, the curved rack-bars secured to the bed-frame oppositethe ends of the platen, the straight rack-bars secured to thetype-carrier opposite the ends of the typesurface and arranged tointermesh with said curved rack-bars, and supports for the typecarrierarranged on each side of the platen to receive and support the carrierwhen off the platen, all combined and arranged to co-operatesubstantially as and for the purpose specified.

3. In a printing-press, the combination,with the bed-frame, the convexplaten secured the rolling pressure of the type-carrier, as set forth.

4. In a printing-press, the combination of the bed-frame, the convexplaten secured to the bed-frame, the curved rack-bars secured to theframe opposite the ends of the platen, the plane-surfaced rectangulartype-carrier arranged to be rolled over and in contact with the platen,the rack-bars secured to the typecarrier opposite the type-surface andarranged to engage said curved rack-bars, the rack-bars secured to thebed-frame 011 each side of the platen at opposite ends and forminginterior angles therewith, and forming also supports for thetype-carrier when off the platen, and the rack-bars secured to oppositesides of the type-carrier and arranged to engage said rackbars, allarranged to co-operate substantially as and for the purpose specified.

5. In a printing-press of the class described, the combination, with thebed-frame and the type-carrier arranged to be rolled thereon, of theguide-bars secured to opposite sides of the bed-frame above and paralleltherewith, a shaft projecting from opposite ends of the type-carrier,two frames mounted on said shaft at opposite ends of the type-carrierresting on said bars and carrying ink-rolls which rest on the surface ofthe type-carrier,whereby the ink-rolls are carried with the type-carrieralong the bed-frame and in contact with the surfaces of thetype-carrier, substantially as and for the purpose specified.

J OIIN R. RANKIN.

Vitnesses:

II. P. H001), V. M. 11001).

